Why need to Waste Water Quality Monitoring ?Despite its name, wastewater is a critical type of water that must be understood regardless of the source of discharge because freshwater is a limited resource on this planet. As municipalities and wastewater treatment plants grapple with needing to do more with less resources — and major concerns when it comes to potential fines — many are starting to realize the immense value of reusing water and driving efficiencies.However, first they need to have a firm understanding of water composition when it comes to reusing—not just from a mandated compliance standpoint but rather based on how the treated water could be used for several other purposes. Reuse comes in many forms — from drinking to commercial needs like irrigation, golf courses, etc. — and has the potential to drive additional revenue, optimize operational efficiencies, and potentially reduce regulatory limits. Unfortunately, most industries simply have not changed their mindset enough to invest in continuous monitoring to proactively understand what actually is in their water for safe reuse.So where does water quality monitoring fit in and how has it evolved? Previously, municipalities and water treatment plants were forced to rely on static lab water quality testing and all of the time consuming manual data processing that came with it. Many treatment plants still do daily static lab testing, but that leaves them flying blind as the test results are delayed with manual approaches, so they can remain unaware of problems for hours or even days. With several portable water quality devices entering the market, there are others who use these instrumentation options, but some water quality sensors are not sensitive enough to collect the precise data needed for effective action in real-time. In addition, fragmented data, constant calibration concerns, handheld water quality probes based on contaminants, and manual maintenance efforts simply add to the inefficiencies and frustration.With the evolution of the Internet of Things (IoT), the ability to build predictive models with machine learning, and to apply artificial intelligence (AI) technologies, real-time water quality monitoring is changing how we look at wastewater. As water that runs clear can still be terribly toxic, the need for a proactive and advanced water quality monitoring system that alerts us immediately if there are hazardous toxins, contaminants, and pollutants in any water source is evident.
Digital Water Quality SensorRS485 Sensor for pH,ORP,DO,Conductivity
Digital Water Quality SensorRS485 Sensor for Dissolved Oxygen, Turbidity, TSS, COD, Ammonia nitrogen, Nitrate nitrogen, etc.Knowledge is power, and we can act only on what we measure. The ability to maintain a smart water management system for a treatment plant, municipality, or farm will be the norm in the future of water automation. Retraining the staff and becoming creative about how smart water data infrastructure can be built into every environment will be essential over the next decade. While the water may look the same as it did 10 years, 10 days, or 10 minutes ago, we now have the ability to know exactly what actually is in the water at precision and speed that was previously unobtainable.New technologies also will dramatically reduce testing costs and generate millions of dollars of savings per wastewater plant based on chemical feeds and repurposing operational funds. All wastewater should be actively monitored to ensure it meets the specific safety requirements for any intended reuse. Monitoring should not just focus on the environmental like pH, DO, TDS, TSS, Turbidity, COD, Ammonia, Total Nitrogen, Total phosphorous, etc.; once treated, it should be tested for dangerous toxins like lead, copper, nitrates, arsenic, chlorine, dissolved oxygen, chromium, and silica, as well as several organics and microbial parameters.Online Water Quality Analyzer for pH, EC, DO, TSS, Chlorine, Turbidity, Ion, etc.Beyond safety, however, actively detecting, transmitting, analyzing, and monitoring water quality creates efficiencies for municipalities and treatment plants from process management to post-treatment distribution. Getting accurate, actionable insight on the best remediation action, predictive maintenance and more will transform how water treatment plants are managed. Continuous monitoring with advanced diagnostics and alerts notifying the necessary personnel of any anomalies or maintenance concerns eliminate human error and keep the workforce efficient.Online COD, BOD, Ammonia nitrogen, TP, TN heavy metals Analyzer, etc.Water efforts no longer can take a backseat to power, energy, transportation, or other mission-critical industries. It cannot be compartmentalized. Interdisciplinary, cross-functional teams are needed to solve such a complex problem without a myopic vision. Organizations embracing the era of smart water management can drive new operational metrics by eliminating the guesswork across the board by minimizing manual controls, optimizing chemical feeds, eliminating unnecessary cleanings and calibrations, avoiding static lab testing, and reducing the cost of raw materials for treatments.It is time to rethink how to manage, protect, and treat our wastewater. Ultimately, smart water monitoring gives operators more control over their output and their bottom line. Now that proven technologies are available, there is no valid reason to claim ignorance. The water flowing in and out of a treatment plant affects us all. Policy changes need to be in effect to bring about enforcement on a broader scale at the effluent just as much as decisions are controlled by the operator for the influent. Production line of BOQU Instrument In today's world, our earth faces many environmental problems, especially in water quality. As a leading manufacturer in water quality analyzers, BOQU Instrument will use all technologies to solve problems related to human and earth survival and always to be the guardians of the earth's water quality. BOQU Instrument’s online water quality analyzer is mainly used to test pH, conductivity, TDS, dissolved oxygen, turbidity, residual chlorine, suspended solids, TSS, ammonia, water hardness, silica, phosphate, sodium, BOD, COD, Ammonia nitrogen, total nitrogen, chloride,lead,iron, nickel, fluoride, copper,zinc, etc. BOQU Instrument as a responsible and high-tech enterprise in China, we think there is still a long way to go, so in BOQU factory, all production is strictly according to ISO9001 from the source of raw material to finished water quality analysis instrument or sensor. as your trusted supplier of water quality monitoring instrument, we always keep to create benefits for our customers, We work hard for the material and spiritual aspects of all employees and contribute to the progress and development of humanity. forever to guard the earth's water quality.
The presence of chlorine residual in drinking water indicates that: 1.A sufficient amount of chlorine was added initially to the water to inactivate the bacteria and some viruses that cause diarrheal disease; 2.The water is protected from recontamination during storage. The presence of free residual chlorine in drinking water is correlated with the absence of disease-causing organisms, and thus is a measure of the potability of water.This Fact Sheet describes:1.The processes that occur when chlorine is added to water, and the definitions involved with these processes;2.How and why the Safe Water System project recommends testing of free chlorine;3.Methods to test free chlorine in the field in developing countries.Installation site of CL-2059A Residual Chlorine MeterDefinitions:When chlorine is added to drinking water, it proceeds through a series of reactions described below. When chlorine is added to water, some of the chlorine reacts first with organic materials and metals in the water and is not available for disinfection (this is called the chlorine demand of the water). The remaining chlorine concentration after the chlorine demand is accounted for is called total chlorine. Total chlorine is further divided into 1) the amount of chlorine that has reacted with nitrates and is unavailable for disinfection which is called combined chlorine and, 2) the free chlorine, which is the chlorine available to inactivate disease-causing organisms, and thus a measure to determine the potability of water.Why Do We Test Free Chlorine in Drinking Water?The SWS project recommends testing free chlorine in two circumstances: To conduct dosage testing in project areas prior to the start of a program. To monitor and evaluate projects by testing stored water in households.The goal of dosage testing is to determine how much sodium hypochlorite solution to add to water that will be used for drinking to maintain a free chlorine residual in the water for the average time of storage of water in the household (typically 4-24 hours). This goal differs from the goal of infrastructure-based (piped) water treatment systems, whose aim is effective disinfection at the endpoints (i.e., water taps) of the system: defined by the WHO (1993) as: “a residual concentration of free chlorine of greater than or equal to 0.5 mg/litre after at least 30 minutes contact time at pH less than 8.0.” This definition is only appropriate when users drink water directly from the flowing tap. A free chlorine level of 0.5 mg/Liter of free chlorine will be enough residual to maintain the quality of water through the distribution network, but is most likely not adequate to maintain the quality of the water when this water is stored in the home in a bucket or jerry can for 24 hours.Online pH, Residual Chlorine, Turbidity, TDS Analyzer in Drinking Water PlantThus, the SWS program recommends in our dosage testing that:1.At 30 minutes after the addition of sodium hypochlorite there should be no more than 2.0 mg/L of free chlorine residual present (this ensures the water does not have an unpleasant taste or odor).2.At 24 hours after the addition of sodium hypochlorite to containers that are used by families to store water there should be a minimum of 0.2 mg/L of free chlorine residual present (this ensures microbiologically clean water).The SWS project methodology leads to chlorine residual levels that are significantly lower than the WHO guideline value for free chlorine residual in drinking water, which is 5 mg/L value.The SWS project recommends testing free residual chlorine meter in homes of SWS users for evaluation of whether or not users are using the system and if they are using it correctly. Households can be visited and ‘spot checked’ to determine if, and how much, free chlorine residual is present in their drinking water. This approach is very useful for program monitoring because the presence of free chlorine residuals in stored water obtained from an unchlorinated source is an objective measure that people are using the hypochlorite solution.For example, if using complete clean water the chlorine demand will be zero, and there will be no nitrates present, so no combined chlorine will be present. Thus, the free chlorine concentration will be equal to the concentration of chlorine initially added. In natural waters, especially surface water supplies such as rivers, organic material will exert a chlorine demand, and nitrates will form combined chlorine. Thus, the free chlorine concentration will be less than the concentration of chlorine initially added. TCL-2057 Online Total Chlorine Analyzer CL-2059A Residual Chlorine Analyzer
What is oxidation-reduction potential?Oxidation-reduction potential (ORP) measures the ability of a lake or river to cleanse itself or break down waste products, such as contaminants and dead plants and animals. When the ORP value is high, there is lots of oxygen present in the water. This means that bacteria that decompose dead tissue and contaminants can work more efficiently. In general, the higher the ORP value, the healthier the lake or river is. However, even in healthy lakes and rivers, there is less oxygen (and therefore lower ORP values) as you get closer to the bottom sediments (mud; see the picture below of a lake bottom). This is because there are many bacteria working hard in the sediments to decompose dead tissue, and they use up a lot of the available oxygen. In fact, oxygen disappears very quickly in the bottom mud (often within a centimeter or two) and ORP falls quickly. ORP is measured in addition to dissolved oxygen because ORP can provide scientists with additional information on the water quality and degree of pollution if present. Also, there are other elements that can function like oxygen (in terms of chemistry) and contribute to increased ORP.Why does oxidation-reduction potential matter?ORP depends on the amount of dissolved oxygen that is in the water, as well as the number of other elements that function similarly to oxygen. Though not technically correct, oxygen and other elements that contribute to high ORP effectively help ‘eat’ things that we don’t want in the water – such as contaminants and dead tissues. When ORP is low, dissolved oxygen is low, the toxicity of certain metals and contaminants can increase, and there is lots of dead and decaying material in the water that cannot be cleared or decomposed. This is obviously not a healthy environment for fish or bugs. In healthy waters, ORP should read high between 300 and 500 millivolts. In the North, we might expect low ORP in waters that receive sewage inputs or industrial waste.How do we measure oxidation-reduction potential?ORP is measured directly in the lake or river water that you are investigating using an ORP sensor. ORP is measured in millivolts (mV) and the more oxygen that is present in the water, the higher the ORP reading is. ORP can either be above zero or below zero.
PHG-2081X Online ORP Analyzer
BH-485-ORPDigital RS485 Online ORP Sensor
ORP-2096Online ORP Meter
There are numerous industrial applications where measurements and/or control of a specific chemical strength of the process is critical for optimizing the production of the end product. These specific concentrations are obtained by mixing a full strength solution with water to achieve the desired percent concentration. such as in Refining, Food, and beverage, Power, Oil and Gas, Pulp and Paper, Chemical, etc.Acid and Base ConcentrationThe desired chemical concentration is achieved using a two-stage mixing procedure. During the first stage, the flow ratio control unit on the missing tank is set to provide (x) gallon per minute of the full strength solution and (y) gallons per minute of water. These values are adjusted to produce a concentration value which is slightly weaker than the desired value. This ratio control must include alarm capabilities to indicate “low flow” conditions for both the full strength solution and the water in order to prevent wasted chemicals or hazardous situations.At the second stage, a conductivity sensor and analyzer function as a “trim control”. This combination adds small amounts of full-strength solution to the mixing tank to produce the exact concentration desired. For example, to produce a 4% caustic solution from a large bulk caustic supply at 50%, the flow ratio controller is adjusted to make a 3% solution and the conductivity information is used to add additional caustic to achieve the 4% concentration. Conductivity is a very reliable index of the concentration for most acid and base (caustic) solutions. below shows the correlation between conductivity and concentration for four common solutions.For most solutions, there is a peak conductivity value. Before this peak value is reached, conductivity correlates positively with concentration; after the peak, it correlates negatively. So, if the concentration range passes through the peak for that chemical the conductivity value (except the peak value) represents two different concentration values. Therefore, it is mandatory that any application near the peak of a particular solution be carefully controlled.SJG-2083C Acid and Alkali Concentration MeterChemical NameChemical EquationConcentration RangeNitric AcidHN030~25.00% Sulfuric AcidH2SO40~25.00%;92~100.00%; Hydrochloric AcidHCL0~20.00%;25~40.00%; Sodium HydroxideNaOH0~15.00%;25~40.00%; Potassium HydroxideKOH0~30.00%; Sodium ChlorideNaCL0~20.00%; Mainly Application of SJG-2083C Acid and Alkali Concentration MeterYou will find these applications in many industries. Demineralized water systems use caustic and acid solutions to regenerate the resin beds. The vegetable processing industry uses caustic solutions as a cleaning agent. Acid and caustic solutions are used in Clean-In-Place (CIP) systems to remove residue from process equipment without dismantling the systems. Solutions of acid and caustic are used to neutralize waste streams before discharge to municipal systems. Anywhere you find these acid and caustic solutions, you will find someone who is interested in their concentrations. Inductive Conductivity provides a reliable, maintenance-free method to monitor, control, and transmit this value.
Inductive conductivity sensorwith PTFE flange installation for Acid or alkali concentration measurement
Acid and base concentrationwith pipe installation, usually the thread is 3/4NPT
Toroidal conductivity sensorwith flow-cell to measure acid or alkali concentration.Summary by BOQU InstrumentConductivity measurement is a reliable indicator of the concentration of most acid or base solutions. In determining the proper loop components for a particular application, the material of construction will be of primary concern. A chemical resistance chart should be consulted, or an application data sheet completed and sent to the factory in order to insure an installation that will be suited for the intended application. if need knows more info, please contact email@example.com.